跟讀練習: Class Presentation: Why Is the Sky Blue? - 通過影片學習英語口語
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34 句
如果句子過短或過長，請點選 Edit 進行調整。
1
Right, everyone, settle down, please.
好了，大家，安靜一下。
2
Oliver's presenting his science project today.
今天 Oliver 要展示他的科學專案。
3
Um... morning, everyone.
嗯……大家早上好。
4
So, my question today is, why is the sky blue?
那麼，我今天的問題是：天空為什麼是藍色的？
5
First, sunlight looks white, doesn't it?
首先，陽光看起來是白色的，對吧？
6
But actually, it's a mix of all the colours,
但其實，它是所有顏色混在一起的，
7
like a rainbow, from red to violet.
就像彩虹一樣，從紅色到紫色。
8
Oh, like light through a prism?
哦，就像光穿過三稜鏡那樣？
9
Yes, exactly! Brilliant.
對，就是這樣！太棒了。
10
Now, when sunlight comes into our air,
現在，當陽光進入我們的空氣時，
11
it hits tiny gas particles, much smaller than dust.
它會撞上微小的氣體分子，比灰塵小得多。
12
Blue light has short waves,
藍光的波長很短，
13
so it bounces around much more than red light.
所以它比紅光更容易四處彈開。
14
It's called Rayleigh scattering, and it fills the sky with blue!
這叫作 Rayleigh 散射，它讓整片天空都變成藍色！
15
Okay, let me show you a quick experiment!
好，我來給大家做個小實驗！
16
This is just water with a little milk in it.
這只是加了一點牛奶的水。
17
Could someone turn off the lights, please?
有人能幫忙關一下燈嗎？
18
Look! From the side, the water looks a bit blue.
看！從側面看，水有點發藍。
19
No way! It really does look blue!
不會吧！真的是藍色的！
20
Hang on, I've got a question.
等一下，我有個問題。
21
If blue scatters more, why are sunsets red, then?
如果藍光散射得更多，那日落為什麼是紅色的？
22
Oh... um, good question.
哦……嗯，好問題。
23
Wait, look at the torch through the end of the glass!
等等，從杯子另一頭看手電筒！
24
Whoa, the light looks orange now!
哇，現在光看起來是橙色的！
25
At sunset, light travels through much more air,
日落時，光要穿過多得多的空氣，
26
so most of the blue gets scattered away.
所以大部分藍光都被散射掉了。
27
Only the red and orange light reaches our eyes!
只有紅光和橙光能到達我們的眼睛！
28
Oh, and violet scatters even more than blue,
哦，還有，紫光散射得比藍光還多，
29
but our eyes are much better at seeing blue.
但我們的眼睛對藍色敏感得多。
30
So, that's why the sky is blue, not purple!
所以，這就是天空是藍色而不是紫色的原因！
31
Well done, Oliver! That was excellent.
做得好，Oliver！非常出色。
32
You started a bit quietly, though.
不過你一開始聲音有點小。
33
Next time, speak up from the very beginning.
下次從一開始就大聲說。
34
I will. Thanks, miss!
我會的。謝謝老師！
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本課的詞彙與口語要點
這節 B1 級別的口語課以影片“Class Presentation: Why Is the Sky Blue?”為素材。 這段影片共有 34 個句子、249 個單詞可供跟讀。 講話部分時長為 1:54。 說話人語速平穩，每分鐘約 131 個詞，很適合跟讀。 83% 的單詞屬於英語最常用的 3,000 詞，其餘的詞建議在練習前先學一下。
影片中的重點詞彙
影片中最難的 12 個單詞，附發音和釋義：
| 單詞 | 發音 | 釋義 |
|---|---|---|
| sunset 名詞 | /ˈsʌnˌsɛt/ | 日落 |
| sunlight 名詞 | /ˈsʌnˌlaɪt/ | 陽光 /陽光, 日光 |
| violet 名詞 | /ˈvaɪ.ə.lət/ | 紫羅蘭 /紫羅蘭, 堇菜 |
| dust 名詞 | /dʌst/ | чынтў, хуэйтў |
| experiment 名詞 | /ɪkˈspɛɹ.ə.mənt/ | 實驗 /實驗 |
| purple 名詞 | /ˈpɝ.pl̩/ | 紫色 |
| quietly 副詞 | /ˈkwaɪ.ɪt.li/ | 悄悄地, 安靜地 /安靜地 |
| particle 名詞 | /ˈpɑɹtək(ə)l/ | 粒子 |
| whoa | /woʊ/ | 籲 |
| torch 名詞 | /ˈtɔːtʃ/ | 薪火, 火炬 |
| scatter 動詞 | /ˈskætɚ/ | 散佈 /散佈 |
| prism 名詞 | /ˈpɹɪzəm/ | 稜柱 /稜柱 |
影片中出現的短語動詞
| 單詞 | 釋義 |
|---|---|
| settle down 動詞 | 冷靜下來 /冷靜下來 |
| turn off 動詞 | 關 /關, 關掉 /關掉 |
需要注意的發音
中文母語者容易讀錯的音：
- 詞尾子音 — 要讀清楚，後面不要加母音: sunset /ˈsʌnˌsɛt/, sunlight /ˈsʌnˌlaɪt/, violet /ˈvaɪ.ə.lət/, dust /dʌst/, experiment /ɪkˈspɛɹ.ə.mənt/
如何用這段影片練習
- 先完整聽一遍影片，不要開口，記下不認識的單詞。
- 用正常速度逐句跟讀，每句重複到你的節奏與說話人一致為止。
- 錄下自己的聲音並與原聲對比，特別注意 sunset, sunlight, violet 這類單詞。
什麼是跟讀法？
跟讀法 (Shadowing) 是一種有科學依據的語言學習技巧，最初開發用於專業口譯員的培訓，並由多語言者Alexander Arguelles博士普及。這個方法簡單而強大：您在聽英語母語原聲的同時立即大聲重複——就像是一個延遲1-2秒緊跟說話者的影子。與被動聽力或語法練習不同，跟讀法強迫您的大腦和口腔肌肉同時處理並模模擬實的講話模式。研究表明它能顯著提高發音準確性，語調，節奏，連讀，聽力理解和口語流利度——使其成為雅思口語備考和真實英語交流最有效的方法之一。